Synthesis of hybrid polycycles containing fused hydroxy benzofuran and 1<i>H</i>-indazoles <i>via</i> a domino cyclization reaction
作者:Jith C. Janardhanan、Kiran James、Anisha Puthuvakkal、Rasmi P. Bhaskaran、Cherumuttathu H. Suresh、Vakayil K. Praveen、Narayanapillai Manoj、Beneesh P. Babu
DOI:10.1039/c9nj01991j
日期:——
A stoichiometry controlled domino cyclization reaction of hydrazone and p-benzoquinone to an angularly fused 3H-benzofuro[3,2-e]indazole core with an embedded oxygenated dibenzofuran framework under mild reaction conditions is disclosed. The reaction involves palladium catalyzed 5-hydroxy-1H-indazole formation followed by TFA mediated [3+2] annulation between the in situ formed 5-hydroxy-1H-indazole
公开了在温和的反应条件下,and和对苯醌经化学计量控制的多米诺环化反应,该反应成具有嵌入式氧化的二苯并呋喃骨架的3 H-苯并呋喃[3,2- e ]吲唑核芯。该反应涉及钯催化的5-羟基-1 H-吲唑的形成,然后是TFA介导的原位形成的5-羟基-1 H-吲唑和p之间的[3 + 2]环化反应。-苯醌。发达的方法之所以具有吸引力,是因为同时形成了两个带有连续多重键形成事件的杂环,其中包括两个C–C,一个C–N和一个C–O键。还描述了蓝色发光的苯并呋喃吲唑衍生物的光谱和理论研究。
Copper-catalyzed aerobic annulation of hydrazones with dienones: an efficient route to pyrazole-linked hybrid molecules
作者:Kalinga H. Nayak、Robert K. Jijin、Mariswamy K. Sreelekha、Beneesh P. Babu
DOI:10.1039/d4ob00825a
日期:——
A copper-catalyzedaerobic [3 + 2] annulation reaction to access various pyrazole-bound chalcones starting from readily available and cost-effective hydrazones and dienones is reported. These pyrazole-bound chalcones were further utilized effectively to prepare a series of pyrazole-linked hybrid molecules, such as pyrazole–pyrazoline, pyrazole–aziridine, and pyrazole–pyridine hybrids by efficient simple
Supramolecular organic frameworks derived from bromoaryl-substituted dichlorodiazabutadienes via Cl···Br halogen bonding
作者:Namiq G. Shikhaliyev、Abel M. Maharramov、Khanim N. Bagirova、Gulnar T. Suleymanova、Biligma D. Tsyrenova、Valentine G. Nenajdenko、Alexander S. Novikov、Victor N. Khrustalev、Alexander G. Tskhovrebov